Unaudited Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015
Income Statement [Abstract]
Revenues	$ 8,180	$ 7,686	$ 17,241	$ 16,100
Cost of sales	4,564	4,185	9,502	8,604
Gross profit	3,616	3,501	7,739	7,496
Demand creation expense	762	769	1,803	1,601
Operating overhead expense	1,743	1,791	3,599	3,536
Total selling and administrative expense	2,505	2,560	5,402	5,137
Interest expense (income), net	15	5	22	9
Other (income) expense, net	(18)	(34)	(80)	(65)
Income before income taxes	1,114	970	2,395	2,415
Income tax expense	272	185	304	451
NET INCOME	$ 842	$ 785	$ 2,091	$ 1,964
Earnings per common share:
Basic (in dollars per share)	$ 0.51	$ 0.46	$ 1.26	$ 1.15
Diluted (in dollars per share)	0.50	0.45	1.23	1.12
Dividends declared per common share (in dollars per share)	$ 0.18	$ 0.16	$ 0.34	$ 0.30